The electronic behavior of calcined material obtained from an (yttrium-O-phenylene-O)-(ytterbium-O-phenylene-O) hybrid copolymer

The calcinations of an yttrium-O-phenylene-O-ytterbium-O-phenylene-O hybrid copolymer under an argon atmosphere gave the composite material of nano-sized yttrium oxide and ytterbium oxide in the matrix of carbon clusters. The material was found to show a visible-light responsive oxidation-reduction function, possibly through an electron transfer in the process of ytterbium oxide → carbon clusters → yttrium oxide → carbon clusters.